EP 4046769 A1 20220824 - METHOD FOR REMOVING PROTECTIVE FILMS FROM PREPREG COMPOSITE FABRICS IN AN UNTREATED STATE AND RELATED DEVICE
Title (en)
METHOD FOR REMOVING PROTECTIVE FILMS FROM PREPREG COMPOSITE FABRICS IN AN UNTREATED STATE AND RELATED DEVICE
Title (de)
VERFAHREN ZUM ENTFERNEN VON SCHUTZFILMEN VON VORIMPRÄGNIERTEN VERBUNDSTOFFEN IM UNBEHANDELTEN ZUSTAND UND ENTSPRECHENDE VORRICHTUNG
Title (fr)
MÉTHODE POUR ENLEVER LES FILMS PROTECTEURS DES TISSUS COMPOSITES PRÉ-IMPRÉGNÉS DANS UN ÉTAT NON TRAITÉ ET DISPOSITIF ASSOCIÉ
Publication
Application
Priority
IT 202100004091 A 20210222
Abstract (en)
A method for treating a composite material having a polymer matrix and a filler comprising the following steps: receiving two-dimensional elements of composite material covered with a protective film; bringing said two-dimensional elements to a temperature below 0 °C to approach or exceed a glass transition temperature of the polymer matrix; at least partially separating the protective films from said two-dimensional cooled elements by one or more jets of compressed gas directed towards the two-dimensional elements or by repeated automatic folding of the two-dimensional elements; and aspirating, by means of a forced suction system, the removed films, which have a mass lower than the corresponding two-dimensional elements.
IPC 8 full level
B29B 17/02 (2006.01); B29B 17/04 (2006.01); B29C 63/00 (2006.01); B29C 70/54 (2006.01)
CPC (source: EP)
B29B 17/02 (2013.01); B29C 63/0013 (2013.01); B29B 2017/0021 (2013.01); B29B 2017/0416 (2013.01); B29B 2017/0428 (2013.01); B29C 70/54 (2013.01); B29K 2105/0872 (2013.01); B29L 2009/00 (2013.01); Y02W 30/62 (2015.05)
Citation (applicant)
FR 3036996 A1 20161209 - RE-USE COMPOSITES INNOVATION [FR]
Citation (search report)
- [XA] FR 3036996 A1 20161209 - RE-USE COMPOSITES INNOVATION [FR]
- [A] DE 19507218 C1 19960822 - DAIMLER BENZ AG [DE]
- [A] US 2015258766 A1 20150917 - GILLARD MARC [BE], et al
- [A] WO 9407670 A2 19940414 - SOTA ENVIRONMENTAL RES GROUP [CA], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DOCDB simple family (application)
EP 22157710 A 20220221; IT 202100004091 A 20210222